A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the density of the gas? What is the molar mass of the gas?

Q: 4) Trimethyl Aluminium exists as a: A)Dimer b) Monomer d) Hexamer e) Tetramer

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Q: 10) A patient is to be given 2 litres of 0.9% sodium chloride via intravenous infusion over a 24…

A: From given concentration of sodium chloride we can calculate the millimoles of sodium.

Q: Provide the IUPAC name for the condensed structural formula shown here. CH3 CH3-CH-CH₂-CH₂-CH3 5- 4-…

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Q: 5.6) Identify the spectator ion(s) in the reaction of HC2H3O2(aq) and NaOH(aq). O Nat(aq) and C₂H3O₂…

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Q: Consider the standard reduction potentials listed below and identify the substance that will act as…

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Q: (6.3)The volume of a gas is 0.953 L at 30.0 °C. If the gas is heated to 60.0 °C, what would be the…

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Q: Choose the possible the product of the following reaction? о де OH ОН ОН дава во све ОН OH II OH Е…

A: Salicylic  acid reacts with acetic anhydride to give acetylsalicylic acid, which is commonly known…

Q: Write the expression for the equilibrium constant for the reaction represented by the equation: AgCl…

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Q: (6.6: Similar to For practice 6.10) The mixture of gas contains 3.5 g Ne and 2.5 g He. What is the…

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Q: Q1 * S S 1,3-dithiane 1,3-dithiine 1,4-dithiene 1,4-dithiane XXX 7-oxaspiro[5.6]dodecane…

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Q: In VSEPR theory, molecular geometry is determined by O electron-nucleus attractive forces. O…

A: We have to tell how the molecular geometry is determined by the VSEPR theory. The given options are…

Q: Using benzoic acid's solubility data in water (found in the pre-lab), calculate the amount of HOT…

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Q: Measurements show that the energy of a mixture of gaseous reactants increases by 316. kJ during a…

A: The relation between change in enthalpy, work, and internal energy is given as: ∆H=∆U+w…

Q: CH₂ CH3 CH₂ CH3 H3CC CH₂ CH₂ CH CH₂ CH3 CH₂ CH3

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Q: Write the Keq expression of the reaction. 1/2 H2(g) + 1/2 I2(g)⇌HI(g)

A: In this question, we will write the equilibrium constant expression for the given chemical reaction…

Q: For each of the following reactions at constant temperature, predict whether ArS is positive or…

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Q: 28) Calculate the moles of magnesium oxide reacted and the H (in kJ per mole of MgO reacted) for the…

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Q: dentify which ONE of the following aqueous solutions has the highest freezing point assuming 100%…

A: Find out highest freezing point of solution. 100% dissociation

Q: (5.5, 5.7 & 5.8) Classify the following reaction. Ba(NO3)2(aq) + K₂SO4(aq) --> acid-base reaction O…

A: Chemical reactions are classified into different types depending upon the reaction condition and…

Q: Ammonia is produced when nitrogen and hydrogen gases react at high pressures and temperatures: N2…

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Q: 2. Consider the following TLC plate depictions below. In each depiction, 2 unknown samples are…

A: Thin layer chromatography(TLC) is a technique which works based on the distribution or affinity of…

Q: How many moles of Argon are in 13.56L at STP? - 1.1 mol - 0.55 mol - 0.61 mol - 1.7 mol

A: Using the conditions of standard temperature and pressure and the given value of volume we can…

Q: 11. Below are four C-13 spectra for the isomers of C4H-CI. Identify the structure that corresponds…

A: The compound having same molecular formula but different structural arrangements is known as…

Q: Calculate the value of AG at 25 °C for the cell described by the cell notation given below: Ti²+…

A: Standard reduction potential of both half cells is given. This will be used to calculate E°cell…

Q: Select the closed system that contains the lowest molar concentration of gas dissolved in water at…

A: We know that  higher the value of Henry's law constant Kh at a given pressure, the lower is the…

Q: What is the correct name for KNO₂? [Select] V anion. [Select] choose the correction cation and

A: Given in following question a compound KNO2 write this compound name and anion and cation.

Q: Consider the following solubility versus temperature curve for potassium chloride (KCI). 100 80 KCI…

A: Answer: Solubility of a solid substance at a given temperature is equal to its maximum mass that can…

Q: Calculate the value of the equilibrium constant given the following information. SO3(g) + H₂O(g)…

A: Here we are required to find the equilibrium constant for the given reaction

Q: The following coal composition was found when burnt in a furnace. C = 70.9 %/ H = 4.5% S = 0.9% N =…

A: Composition of  burnt coal: C: 70.9% H: 4.5% S: 0.9 % N: 1.8% O:  6.8% Ash: 4.4% Water: 10.7%

Q: Civen Chromist needs to add 0.381g of N9₂ co3 (106g| mod to a reaction mixture. Find out of a the…

A: Please find the solution attached as handwritten note.

Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid…

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Q: Similar to For practice 6.12)In the reaction shown here, 955 mL of O₂ forms at P = 0.950 atm and…

A: According to the question, we need to determine the mass of Ag2O decomposed.

Q: Is K2S ionic and held together by opposite charge or shared electrons in

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Q: Calculate the number of moles of HI that are at equilibrium with 1.25 mol of H₂ and 1.25 mol of 12…

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Q: Q55

A: When compound is symmetrical then there is no disturbance in bond angle

Q: Specify the local electron geometries about the atoms labelled a-d. Unshared electron pairs affect…

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Q: .) addition of catalyst e.) cooling the system  f.) What happens to the concentration of NO2 if…

A: According  to Lechatellier principle  if a system  in equllibrium is subject to change in…

Q: leave

A: Part A: Given data: pH of the solution= 11.120 Let us calculate the [H+] using the formula: pH =…

Q: Draw the Lewis structure for the chlorine-containing ion CIO₂. Answer the following questions about…

A: We have to draw the Lewis structure for ClO2-.

Q: Here is an isomer of 2,4-dimethylcyclihexonal. Complete the alternative chair confirmations on the…

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Q: Draw the Lewis-dot structure for SeHCI.

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Q: If the concentrations of products and reactants are equal, is the system at equilibrium?

A: Given statement: If the concentrations of products and reactants are equal ,is the system at…

Q: 2. A sample of neon gas is contained in a bulb at 150 °C and 350 kPa. If the pressure drops to 103…

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Q: A mixture of hellum and hydrogen gas is expanded from a volume of 61.0 L to a volume of 69.0 L,…

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Q: Consider the redox equation. HI + HNO3 → H₂O + HIO3 + NO2 1. The atom that lost electron/s is…

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Q: Explain the KOH activation of lignin derived porous carbon for lithium- ion batteries.

A: Because of their varieties of form, adjustable microstructure,large surface area porous carbon…

Q: Suggest four ways in which the concentration of PH3 could be increased in an equilibrium described…

A: Effect of Concentration:- If we increases the concentration of reactant at equilibrium , the…

Q: Select the product formed by the following reactions. 1) NaOEt 1) NaOEt 3) H₂0, A A) I H₂C CH₂ 2)…

A: ->Base can abstract most acidic hydrogen and form nucleophile which can give nucleophilic…

Q: 2. SEP Develop a Model Use graph paper or graphing software to plot the moles of ammonia produced…

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Q: How many kilograms of lead must be added to 71 kg of tin to yield a Pb-Sn alloy having a composition…

A: Mass of tin = 71 kg % lead = 29% %tin = 71%

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.